Snippets from both interviews will be aired on Nightline and ABCnews.com.

While Facebook has not revealed what the tool will do, Zeus Kerravala, an analyst with ZK Research, said the social network is in the perfect position to come up with something really helpful.

“Facebook has location info, so it knows where you are,” Kerravala said. “It also knows who you are and who is in your network, including family. With that kind of information, they could build an applet that allows you to broadcast emergency messages through Facebook.”